I was tightening it up to its correct torque and the bolt snapped. Does anyone know a friendly machine shop which could get it out for me? I live in the Wigan area.

Many thanks!

Stud Extractor Set 8 Pc - Screwfix.com, Where the Trade Buys

When I did this on every single bolt (yes, a moment of classic muppetry) I was lucky that every single "end" in the cylinder head was extracted using the end of a flat screwdriver in such a position to start tapping it in the right direction. Only one of them needed a drill, and that was a cinch as well. I think it's a good safety feature that they snap so easily to prevent seriously lodged endy-bits.

When I did this on every single bolt (yes, a moment of classic muppetry) I was lucky that every single "end" in the cylinder head was extracted using the end of a flat screwdriver in such a position to start tapping it in the right direction. Only one of them needed a drill, and that was a cinch as well. I think it's a good safety feature that they snap so easily to prevent seriously lodged endy-bits.

:rofl:

Righty Tighty Lefty Loosey :P

When I did this on every single bolt (yes, a moment of classic muppetry) I was lucky that every single "end" in the cylinder head was extracted using the end of a flat screwdriver in such a position to start tapping it in the right direction. Only one of them needed a drill, and that was a cinch as well. I think it's a good safety feature that they snap so easily to prevent seriously lodged endy-bits.

Yes, I'd expect that if the bolts were clean and free to move when refitted, they will be slack now as the heads have snapped off. As Devonutopia said just use a screwdriver you should be lucky enough to find that there is a stepped bit on the bolt shank that you can hit against, I've also used a masonary nail as well - to start to create a hole for the screwdriver to bit into - but take care as these nails are veeeery hard!

Thanks guys!

I'm going totake your advice and try a flat screwdriver on it. I'll let you know how it goes!

Righty Tighty Lefty Loosey :P

I utter that to myself every time I pick up a ratchet!

Once bitten, twice shy and all that.